Born ‎2- may 1897 Amsterdam, Netherland‎. Son of Abraham Marcus Koster and Sara Aandagt‏

Born ‎12-1-1900 Amsterdam, Netherland, died ‎7- sep 1942 Auschwitz-Katowice, Poland‎, 41 or 42 years. Occupation: Store attendant, ‎1st marriage/ related to: Eliazer Koster - Aandagt, ‎2nd marriage to: Ephraim Streep - Soester. Daughter of Jacob Keizer - de Haas and Schoontje Lessing - de Jong‏